Former Stitch Fix COO Julie Bornstein just took the wraps off her app-only e-commerce startup, The YesAfter teasing the launch of their new startup last year, e-commerce veteran Julie Bornstein and her technical co-founder, Amit Aggarwal, are today launching The Yes, a women’s shopping platform that they’ve been quietly building for 18 months and they say will create tailor-made experie…